Design Specifications
Releasing and reversing overshot is the most effective tools for grappling fish from the borehole smooth diameter. Such as drill collar, drill pipe, joint,coupling,tubing,drilling tools and testing instruments,etc.,can bear big load,design the fish sealing structure, can high pump pressure circulation,also can release the fish in borehole,with milling shoers,used for dressing on flash crevasse,make the fish go smoothly bailer,attachment have extension,wall hook,increase the guide shoe and so on.Each grapple is equipped with soiral grapple and blue grapple.The spiral grapple is used to the fish diameter is near the maximum catch size. The basket grapple is used to the fish diameter is substantially less than maximum catch size.
型号 TYPE | 外径 O. D. (mm) | 接头螺纹 THREAD CONNECTION | 最大打捞尺寸(mm) Max. Catch size 螺旋卡瓦 Spiral Grapple | 最大打捞尺寸(mm) Max. catch size 篮状卡瓦 Basket Grapple |
LT-T105 | 105(4-1/8) | NC31 | 82.5(3-1/4) | 69.9(2-3/4) |
LT-T143 | 143(5-5/8) | NC38 | 121(4-3/4) | 108(4-1/4) |
LT-T168 | 168(6-5/8) | NC46 | 127(5) | 114.3(4-1/2) |
LT-T200 | 200(7-7/8) | NC50 | 159(6-1/4) | 141(5-9/16) |
LT-T219 | 219(8-5/8) | NC50 | 178(7) | 159(6-1/4) |
LT-T245 | 245(9-5/8) | 6-5/8REG | 203(8) | 190.5(7-1/2) |
LT-T286 | 286(11-1/4) | 6-5/8REG | 245(9-5/8) | 225.5(8-7/8) |
LT-T340 | 340(13-3/8) | 7-5/8REG | 279(11) | 208.6(9) |
© 2017 Wolfni Limited. All rights reserved. 蜀ICP备11016153号 | Privacy | Terms | Help | Site Map | Contact |